Lock



e. w. HARRICH I 2,196,112

April 2, 1940.

- LOCK Filed S ept. 2a, 1939 2 Sheets-Shet 2 3 MN Q N% W m NW MW N Wm it- Sm. wfi w Guen fer Wfiaivicz/ ATTORNEYS Patented Apr. 2, 1940 UNITED STATES PATENT OFFICE 4 Claims.

vide a lock of the above described character so I constructed and arranged as to eliminate the danger of bodily harm from a protruding handle, it being well known that many injuries are caused by the present type of door handles that extend beyond the surface of the door.

A special object of my invention is to provide a lock of the above described character wherein there is employed a button for actuating the lock g mechanism with said button arranged in a substantially flush relation with the face of the door,

thus. eliminating danger of accident due to a pedestrian or rider of a vehicle having his or her clothing caught by the door handle ordinarilyemployed.

Another important object of my invention is to provide a lock of the above described character which is simple in construction, durable in use, efficient in operation and economical in manufacture.

Other objects and advantages will be apparent from the following description, appended claims and annexed drawings.

Referring to the drawings wherein like reference characters designate like parts through'the several views:

Figure 1 represents a transverse or horizontal section of a motor vehicle door, showing my improved lock in position and as the same would appear in locked position.

Figure 2 is a fragmentary front elevation pro-. jected from Figure 1.

Figure 3 is a vertical section further illustrating the locking mechanism, the section being taken on the line 3-3 of Figure 2.

Figure 4 is a disassembled perspective view of my invention, certain of the parts being eliminated to more clearly depict the others.

Figure 5 is a detail vertical section of the lock employed in my invention.

Figure 6 is a sectional view taken on'the line 6-45 of Figure 5.

In practicing my invention, as illustrated in the drawings, I provide a frame 9 comprising a pair of inner and outer plates l0 and II con An important object of my invention is to pro-- nected' together in spaced relation by means of bolts l2 and said' frame is disposed within the inside of a door casing l3 forming a door l4 and said frame is secured to the inner face of therear wall of said casing, adjacent the free end of said door. I

A latch bolt I5 is mounted within the frame 8' and is slidably carried therein by means of spaced guides I6 secured to the rear face of the front plate ll. The'projecting or latching end of the bolt I5 is provided with an arcuate face for engagement with the outer face of the door frame casing I8 for effecting retraction of the bolt IE to permit closing of the door from open position and for seating or latching engagement within the keeper ll.

The latch bolt I5 is normally held in latched or projected position by means of a spiral spring l9 having one end secured to a pin 20 carried by the front plate I I and the opposite end engaging the side wall of a vertical slot 2| formed in the front face of the bolt in proximity to the rear end thereof as clearly illustrated in Figure 2 of the drawings.

Arranged transversely within the door casing l3 adjacent the free end thereof, is a casing or housing 22 having an inner end connected to the front plate It by means of welding or the like and a front end extending through an opening formed in the front face of the door and provided with a collar 23 threaded thereon. The front end section of the casing 22 is of cylindrical configuration while the rear end section is of a semi-cylindrical shape defining an opening between its spaced longitudinally extending edges.

Slidably mounted within the front end section of. the casing 22 is a push button constituting a barrel 24 in which is rotatably mounted alock cylinder 25 as clearly illustrated inv Figure 5 of the drawings. The barrel 24 and cylinder 25 constitute parts of a lock mechanism of the tumbler "type wherein the cylinder is provided with a keyway 26 extending lengthwise therein for the reception of a key- 2'5.

The cylinder 25 is formed with a pair of spaced bores in which are slidably contained pins 28 having outer end sectionsfor engagement with spring pressed pins 29, arranged in aligned bor-es formed in the barrel 24. Insertion of the key within the keyway 26 serves to position the outer faces of the pins 28 in flush relation with the periphery of the cylinder 25 and thus dispose the pins 29 wholly within the barrel thereby permitting rotation of the cylinder 25 with respectto the barrel. Obviously, when the barrelis in position with the pins 28 engaging the pins 29, and the key is withdrawn, the ends of the pins 29 will move the pins 28 inwardly with respect to the periphery of the barrel and the ends of the pins 29 will be positioned within the bores of the cylinder 25 and thereby maintain the cylinder against rotation with respect to the barrel.

The inner end of the cylinder is provided with a lengthwise extending eccentrically mounted pin 39 operable within an elongated transverse slot 3| formed in the head 32 fashioned on the upper end of a dead bolt 33. When the cylinder 25 is in locked position, the lower end of the dead bolt 33 extends within an opening 34 formed in the casing 22 and precludes axial movement of the button or barrel 24. Rotation of the cylinder 25 with respect to the barrel 24, for instance 180, serves to position the dead bolt 33 out of the opening 34 and thus permit inward lengthwise movement of the barrel. The foregoing described lock mechanism is that of an ordinary lock construction and per se forms no part of the present invention.

The inner end of the button 24 is formed with a frustum-shaped section 35 provided with a rearwardly disposed cylindrical-shaped portion 36 which carries a radially extending pin 31. The inner end of the portion 36 is formed with a collar 38 and is integrally connected to the front end of a squared shank 39, the rear end of the latter extending through a similar shaped opening in the front plate H and overlying the upper face of the latch bolt l5. Sleeved on the shank 39 is a coil spring 40 having inner and outer ends engaging the front plate H and the collar 38 to normally urge the button 24 in a direction outwardly with respect to the door.

The front end section of the casing 22 is fashioned with a laterally disposed arm 4| having pivoted thereto, as at 42, a bell crank lever 43. lhe outer end 44 of the bell crank lever is provided with a slot 45 in which is slidably received the pin 3'! for actuating the bell crank lever upon lengthwise movement of the button 24 as herein- I after set forth.

A pin 49 is fixed to the latch bolt l5 and extends upwardly therefrom and is normally disposed in engagement with the inner end 41 of the bell crank lever whereby when the button 24 is moved inwardly within the casing 24 the bell crank lever serves to move the latch bolt |5 to retracted or unlatched position through the medium of the pin 46 thereby permitting opening of the door.

Mounted on the inside face of the door, is a door handle 48 having a shaft extending through the rear wall of the door casing and formed with a right-angularly extending section 49 to which is pivoted the rear end of a link 59. The front end of the link 50 is pivotally connected to one end of a slidable bar 5|.

The front end section of the bar 50 is disposed within the frame 9 adjacent the rear plate I and said bar is fashioned with a pair of spaced elongated front and rear lengthwise extending slots 52 and 53 respectively. A bolt 54 carried by the frame 9 extends transversely through the slot 53 and a pin 55 fixed to the rear side of the bolt I extends within the slot 52. The pin 55 is fashioned with a collar 56 for sliding engagement with the outer face of the bar 5| whereby to maintain the same in position against the rear plate ID as clearly illustrated in Figure 1 of the drawings.

Adjacent its front end, the bar 5| is formed with a stop member 51 extending upwardly therefrom and formed with a head engageable with the rear face of the shank 39 to preclude rearward axial movement thereof to effect operation of the latch bolt |5 as hereinafter set forth. Obviously, when the handle 48 is moved toward the free end of the door, it serves to move the bar 5| in the same direction and thus position the stop member 5'! in the path of the shank 39 with the pin 55 engaging the rear end of the slot 52 to limit said movement of the bar 5| as illustrated in Figures 1 and 2. When the bar is thus disposed, the door is locked and can only be unlocked from the inside of the vehicle.

When the handle 48 is moved in the opposite direction a sufficient distance, the stop member 5'! will be disposed out of the path of the shank 39 and with the pin 55 engaging the front end of the slot 52 thereby permitting the latch bolt l5 to be retracted through the medium of the button 24, or through the medium of the handle 48 by continued movement of the handle in the last-mentioned direction. When the handle is thus moved in the last-mentioned direction, the bar 5| will be moved rearwardly and operate the lath bolt 5 to retracted position through the medium of the pin 55, the bolt 54 serving to limit the rearward movement of the bar 5| by engagement with the front end of the slot 53.

ihe bar 5|, between the slots 52 and 53, is formed with a recess 58 which receives therein an offset end of a leaf spring 59 having its opposite end fixed to the rear plate I0. When the bar 5! is actuated to position the stop 5'! in the path of the shank 39, the offset end of the leaf spring 59 seats within the recess 58 and preeludes accidental displacement of the bar, thereby insuring the latch bolt |5 being maintained in latched position against operation by the button 24. Oppositely disposed from the free end of the door, the door frame casing |8 has mounted therein a pair of hinges, one of which is illustrated at 60. The hinges are connected to the adjacent end of the door whereby to permit said door to be operated to open and closed positions with respect to the door frame casing in the usual manner. Arranged within the door frame casing, adjacent the hinged end of the door, is a pair of spring pressed plungers, one being illus- 1 trated in Figure 1 of the drawings as at 6|, said plungers engage the hinged .end of the door when the latter is in closed position and serves to effect opening of the door upon release of the latch bolt l5 from within the keeper IT. The foregoing described plunger construction for effecting opening of the door is of an ordinary type, well known in the art, and forms no part of the present invention per se.

It is to be understood that when my type of lock is employed in connection with a motor vehicle body having a four door construction, three of the locks are provided with solid buttons and the other provided with a button or barrel containing a lock cylinder, for instance of the herein described type, so that those with the solid buttons may be locked only from the inside and the other either from the inside or the outside and those having the solid buttons unlocked from the inside and the other opened from the inside when locked from the inside or opened from either the inside or outside when locked from the outside. It will also be understood that in a vehicle body of the two door type, the button of one of the locks is of a solid construction while the other is provided with the aforementioned lock cylinder. Furthermore, it is to be understood that the button 24, when the cylinder 25 is in unlocked condition, may be actuated inwardly with the key within or removed from the key-way 26.

It is also obvious that the invention is not confined to the herein described use therefor as it maybe utilized for any purpose to which it is adaptable. It is therefore to be distinctly understood that the invention is not limited to the specific construction as illustrated and described, as the same is only illustrative of the principles of operation, which are capable of extended application in advance forms, and that the invention comprehends all construction within the scope of the appended claims.

What is claimed is:

1. A motor vehicle door lock of the class described, comprising, a latching bolt mounted in the door of a vehicle, alongitudinally movable cylinder lock, means coperating with said cylinder lock for retracting said bolt from the outside of the vehicle by said cylinder lock, means associated with said bolt for retracting the same from within the vehicle and including a turnable handle having a draw bar connected thereto and to said bolt for retracting the latter, and a stop formed on said draw bar and engageable by said cylinder lock to prevent bolt retraction movement of said cylinder lock.

2. A motor vehicle door lock of the class described, comprising, a longitudinally movable cylinder lock having a shank at its inner end and mounted in the outer wall of the door of a vehicle, a spring urged latching bolt, means cooperating with said cylinder lock for retracting said bolt, means for retracting said bolt from the interior of the vehicle and including a handle having a draw bar connected thereto and to said bolt for retracting the latter, and means carried by said bar and engageable by said shank to prevent actuation of said cylinder look from the outside of the vehicle until released from the inside thereof.

3. A motor vehicle door lock of the class described, comprising, a spring pressed latching bolt and an inwardly movable cylinder lock associated therewith, lever connections between said cylinder lock and said bolt to cause retraction of said bolt by inward movement of said cylinder look, a shank extending inwardly from said cylinder look, a draw bar connection associated with said bolt and having a stop formed thereon engageable by said shank to prevent bolt retraction movement of said cylinder lock, and means arranged within the vehicle for the actuation of said draw bar to position said stop in nonengageable position by said shank whereby said lock may be operated from the outside of said vehicle.

4. In a motor vehicle door lock organization, a latch bolt normally maintained in projected position, a lengthwise movable cylinder lock operable toward said bolt and in a plane at right angles to the path of movement of said bolt for effecting retraction of the latter, means coacting with said cylinder lock for retracting said bolt upon movement of said cylinder look toward said bolt, and an element associated with said bolt for retracting the same and operable in a plane coinciding with the path of movement of said bolt, said element formed with a stop engageable by said cylinder lock to prevent bolt retraction movement of said cylinder lock.

GUENTER W. HARRICH. 

